[c-nsp] Cisco 7206 Vs. 7301 --> PPPoE Application

[Cisco Boy]

Can anyone shed the light the comparasion between these 2 option?
I have been told by Cisco Sales manager that there is technically no 
difference between these platfarm. And 7301 was specially built for 
Japanease market.

1) 7206 has Redundant PS while 7301 doesn't
2) Both supports 16K PPPOE users
3) 7206 has more flixibility then 7301.

A few question which I can't find.

1) What is the backplane of both routers?
2) If both routers are loaded with the 16K users (which Cisco claims), 
what would be the average bandwidth per user? (@?)

Thanks for your inputs.

Cheers